£36 Find Cheap Flights from Ireland to Brussels

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Brussels departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Brussels, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Brussels, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£45
Typical prices: £50-£111
Ryanair
Thu 5/2Thu 12/2
DUB - BRU • Direct
Cheapest one-way flight
£66
Typical prices: £22-£111
KLM
Thu 19/2
DUB - BRU • 1 stop
Top airlines
Ryanair
Most flights • 22 per week
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Brussels!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ireland to Brussels

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Brussels that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Brussels

Thu, 5 Feb - Thu, 12 Feb
Ryanair Logo
14:50 - 17:35
DUB
-
BRU
1h 45mdirect
Ryanair Logo
18:10 - 18:55
BRU
-
DUB
1h 45mdirect
£45Ryanair
Thu, 5 Feb - Thu, 12 Feb
Ryanair Logo
20:40 - 08:10
DUB
-
BRU
10h 30m1 stop
Ryanair Logo
18:10 - 18:55
BRU
-
DUB
1h 45mdirect
£97Ryanair
Fri, 16 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
11:30 - 18:40
DUB
-
BRU
6h 10m1 stop
Scandinavian Airlines Logo
18:55 - 11:45
BRU
-
DUB
17h 50m1 stop
£136Scandinavian Airlines
Mon, 2 Feb - Mon, 9 Feb
Scandinavian Airlines Logo
19:05 - 09:40
DUB
-
BRU
13h 35m1 stop
Scandinavian Airlines Logo
19:20 - 10:45
BRU
-
DUB
16h 25m1 stop
£145Scandinavian Airlines
Fri, 9 Jan - Mon, 12 Jan
Scandinavian Airlines Logo
11:30 - 18:40
DUB
-
BRU
6h 10m1 stop
Scandinavian Airlines Logo
20:30 - 11:45
BRU
-
DUB
16h 15m1 stop
£147Scandinavian Airlines
Sat, 28 Feb - Sun, 1 Mar
KLM Logo
17:15 - 22:20
DUB
-
BRU
4h 05m1 stop
KLM Logo
10:45 - 16:20
BRU
-
DUB
6h 35m1 stop
£149KLM
Fri, 16 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
11:30 - 18:40
DUB
-
BRU
6h 10m1 stop
Scandinavian Airlines Logo
19:45 - 10:45
BRU
-
DUB
16h 00m1 stop
£154Scandinavian Airlines
Sun, 8 Feb - Sat, 14 Feb
Scandinavian Airlines Logo
15:00 - 09:40
DUB
-
BRU
17h 40m1 stop
Scandinavian Airlines Logo
22:00 - 09:25
BRU
-
DUB
12h 25m1 stop
£156Scandinavian Airlines
Fri, 9 Jan - Mon, 12 Jan
Multiple Airlines Logo
18:35 - 08:50
DUB
-
BRU
13h 15m1 stop
Multiple Airlines Logo
09:00 - 16:25
BRU
-
DUB
8h 25m1 stop
£164Multiple Airlines
Fri, 20 Feb - Sun, 22 Feb
KLM Logo
08:50 - 14:15
DUB
-
BRU
4h 25m1 stop
KLM Logo
10:45 - 16:20
BRU
-
DUB
6h 35m1 stop
£170KLM
Booking Insights

KAYAK's insights & trends for flights to Brussels

Get data-powered insights and trends into flights to Brussels to help you find the cheapest flights, the best time to fly and much more.

How far in advance should I book a flight to Brussels?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Brussels, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 34 days before departure.

Which is the cheapest airport to fly into in Brussels?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Brussels is Ostende-Bruges Airport, with an average flight price of £52.

Good to know - Cheap tickets from Ireland to Brussels

Cheapest flight£45
Flight from Dublin to Brussels

FAQs - booking Brussels flights

  • Which Brussels airport is closest to central Brussels?

    Brussels is served by 2 major airports. Brussels Airport (7 miles) is the closest to the centre of Brussels and Charleroi Brussels is 27 miles from the centre.

  • How much is a flight to Brussels?

    On average, a flight to Brussels costs £102. The cheapest price found on KAYAK in the last 2 weeks cost £55 and departed from Dublin Airport.

  • What is the cheapest day to fly to Brussels?

    Based on KAYAK data, the cheapest day to fly to Brussels is Thursday where tickets can be as cheap as £58. On the other hand, the most expensive day to fly is Wednesday, where prices are £124 on average.

  • How does KAYAK find such low prices on flights to Brussels?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Brussels.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Brussels?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Brussels?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Brussels?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Brussels?

    The cheapest time of day to fly to Brussels is generally in the evening, when flights cost £66 on average. The most expensive time of day to fly to Brussels is generally in the morning, which is peak travel time and where the average cost of a ticket is £75.

Top tips for finding cheap flights to Brussels

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Brussels flight deals.

Reviews of the top airlines flying from Ireland to Brussels

 
See real verified KAYAK customer reviews for airlines flying to Brussels. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Brussels. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Brussels? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1412 reviews
7.4Boarding
6.9Entertainment
8.0Crew
6.6Food
7.1Comfort
Airline reviews

I was not admitted to the flight!!! i need a refund for this.

2.0 MediocreSvetlana, Dec 2025
DUB - IAD
Read more Aer Lingus reviews

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Incredible service. Incredible entertainment. I felt like they just kept serving us something new avery hour. My wife and I both had a joyous flight.

They out me in the baby row so I was surrounded by toddlers, they also did not send my luggage and was not able to book my connecting flight

Rubbish moved my seat don’t know why same seat configuration cost me extra so me and my wife could sit together now I know why no paper ticket so they can do this

The baggage wasnt uploaded to the plane, lost baggage handling is very poor.

Nothing unexpected considering it is a Ryanair flight. It does the job. Nothing above, at all.

From boarding to disembarking, the whole operation was very efficient.

Passengers next to me insisted I change seats so they could sit together. I had to frequently move so that when the sear belt sign was on I was in my proper seat! I was returning from helping my mum with my dad's things after his sudden death and didn't feel like arguing with the other passengers.

Flying from Hamburg to Stansted was a nightmare if I have to be honest, the flight was due to leave at 15:50 and we ended up not taking off properly till 16:56. They really don’t have enough people doing the sorting of baggage where you get the sticker for your case before the security check, going through security was 10x more faster then the whole baggage situation.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Cabin crew couldn’t be less interested. Cabin manager was the most arrogant and the rudest I’ve encountered in many years.

Flight got delayed and they didn’t keep us informed all the time.

Everything you need to know for your flight to Brussels

Cabin class types available on flights to Brussels

Cabin classes available on flights to Brussels. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.